1 GHz, 1 km fiber-optic link for satellite communication integrated terminals
Abstract
In connection with the growth of satellite communications, demands concerning satellite ground terminals are continuously changing. A description is presented of an integrated terminal concept, using a cost-effective microstrip hybrid integrated circuit, GaAs MESFET, and fiber-optic technology, with complete elimination of waveguide transmission loss. The miniature low-noise front-end, consisting of a single-gate MESFET low-noise amplifier, a dual-gate MESFET active mixer, and an injection laser diode transmitter, is capable of being integrated inside the antenna feed. Through a fiber-optic cable, the downconverter signal is sent to the signal processing facility at a distance of 1 km from the antenna site. The considered link provides the advantages of wide bandwidth, elimination of ground loop and noise pick-up, transmission security, and high-voltage (lightning) isolation.
- Publication:
-
ICC 1981; International Conference on Communications, Volume 2
- Pub Date:
- 1981
- Bibcode:
- 1981icc.....2...38P
- Keywords:
-
- Communication Satellites;
- Data Links;
- Earth Terminals;
- Fiber Optics;
- Millimeter Waves;
- Optical Waveguides;
- Satellite Communication;
- Antenna Feeds;
- Cost Effectiveness;
- False Alarms;
- Field Effect Transistors;
- Gallium Arsenides;
- Hybrid Circuits;
- Integrated Circuits;
- Microstrip Devices;
- Optical Communication;
- Schottky Diodes;
- Signal Processing;
- Transmission Loss;
- Communications and Radar